libusbx is a library which provides generic access to USB devices. As a library, it is meant to facilitate the development of applications which communicate with USB hardware. Its main features are portability (a single cross-platform API for Linux, OS X, Windows, and *BSD), user-mode (no special privileges required), and USB version-agnosticism (all versions of the protocol supported, including USB 3.0).

vsfplot is a 2D vector and scalar field plotter. It features Line Integral Convolution (LIC) on data, curvilinear scaled arrows following the flow lines, a mixed mode (scalar field map with overlaid vector field), handling of missing data to not interfere with the flow lines, generation of Scalable Vector Graphics (SVG) files (which are easily editable and convertible while preserving the best quality for inclusion in a PDF scientific article), and a color palette designed so the flows are uniformly readable when printed as greyscale.

synthclone "clones" MIDI-capable instruments by sending out MIDI data which instructs an instrument to emit sounds for a series of notes, velocities, controls, and aftertouch values. It then saves this data as a sample-based instrument which can be loaded by sampler software.